William robinson



thereon anni eine WILLIAM ROBINSON, Or

Letters Patent No. 109,549 ,deted November 22, 1870. 4

MPRQVEMENT nu, Eiserne-MAGNETIC sicNALiNc APPARATUS Fon RAiLRoAocRossmcs, se. s f

The Schedule "tened to ln the Letta! P ntdxt end maklng pnt o'I theInmo.

To alltwhonz it may concern Be it known that I, WILLIAM ROBINSON', ofBrooklyn, in the county of Kings and State of New York,4 have invented anew and useful Improvement in Electro-magnetic Signaling Apparatus, foruse at crossings .on railroads, and other purposes, of which thefollowing is a full, clear, and exact description, .reference being .hadto the'accoinpauying drawingibrining part of this specification, and inwhich- Figure 1 represents a longitudinalelevation, and l Figure 2, aplan of my improved apparatus asapplied to a. line of railroad.

Figuresi and 4 are front and side elevations of a modified constructionof circuit-closer used in said :1p-- paratns. 4

My invention is applicable to the operation of approach-openingorclosing gates, and audible. or visible signals, by a vehicle while inmotion, and [is mainly designed for` usc ,at crossings and other'placesor breaks on railroads, but is not restricted to said use,

although the invention will only here be described in such relation.

It consists infvariou's combinations and peculiarities in theconstruction of circuit-closers and breakers in an electromagneticsignaling apparatus, whereby the number of batteries to perform acertain work is re duced, and a most ciicient4 and reliable actionisobtainedforthe apparatus.'

Referring, iu the first instance, to'figs. l-and 2 of theaccol'npanyingdrawing A represents a line. ot' railroad, and B acrossing C is oneof'thev circuit-closeis for operation-by a movin rtrain;Y rlhis closervis composed in part of Va' lever,- having armaturesc e at its one end,and dporated by a magnet,d, or lcve'rye.

y A spring, jf. serves to draw said lever down at its opposite'end-iutonotches of 'a circuitfcl'osing lever g',.

as represented.; Points hh and m m complete the circuit, through abatt-ery, D, wires i, and anda signal E, operated by lsaid batterythrough amag'net, It'.

. supposing a train t'obe moving in direction .of the arrow y, it isAcaused lto bear upona lever, l, wl'iich acts on the circuitfclosinglever y, bringing the points h'h in contact with the points m m, whichcompletes the circuit, when the spring f draws the lever b into thelower notch of the lever g, thus holding the circuit closed. l

When the train arrives at an independent .circuitcloser, F, beyondthecrossing, or at any particular point, it vcloses circuit throughwires o 1i q s, a battery, G, and the magnet d, which latter, operating.on-the armatures co and lever b, throws said lever. into or Oppositethe upper n'otch of the lever g, wh'eua spring,

r, draws away the points vlt h, leaving themain circuit f open, andlowering the visible signal E, orstopping the ringing-of a bell, H, insuitable connection by wires with the battery D.

A train passing inthe oppositedirection will press on the lever e ot'the circuit-closer C last, `and leavethe main circuit open', serving thesame purpose as the 'magnet d. The circuit through F is activeonly whilethe wheels oi' thc train pressvon thelever u, a spring,

o, keeping the'- circuit broken when the. pressureot' the wheelsis'removed.

G' is another circuit-closer, situated on ill-c oppovsite side of thecrossing B, at a distance of half 'a mile,

(more Or less,) from the crossing. 1t is similar to the circuit-closer0, excepting that the spring /rf holds the circuit closed, linstead ofopen; also, pressure .on the lever lopens the circuit, and the lever b',being drawn down into the lower notch ofthe circniprclosing 1n' theOperation of this "circuit-closer, the magnet d' acts in a direct manneron the closer. T-he train approaching the crossing B in the directionofthe arrow z, pressure on thele'ver c' raises the lever b', and allowsthe spring fro act, closing the circuit, when it is left closed, thetrain passing onto the-'independent' crcuit-closcr F', which 4operatesthrough thewircs p o s q, the magnet d' and battery G. The main cir--cuit through the cilcujit-closer C passes through the By theseseveralconnections the battery G is kused with two distinct eircuit-close1 s,Fand Ff; to complete two circuits through the magnets and d'independcntly of eachother; also, 'the circuit-closers 0 and C'independently operate the signals E or E through a single battery, D. Inthis way'ay multiplicity 'o f bat terics and complicated `mechanism forOperating the signals is avoided.

. In figs. 3 and 4 is shown a, niodiiied constructionfof thecircuitlcloserQby which the lever 11,'thatholds the circuit closed, liesagainst the circuitfclosiug lever `g, and is drawn under it by a spring,f, when the cir- Leuit'is closed by' tho lever. 4. y

The battery D, as hereinbefore observed, may be.

made to operate not only the signal E, but also the signal H, eitherindependently of E, trough a. circuit-closer, or in connection with it,by suitably arranged mechanism, thus makingonc battery serve severalpurposes.

Again', the one signall H. may be operated by sup# I plementarycircuit-clusters arranged -iu proximity to the track outside of orbeyond the circuit-closers C O', using either the same battery D, oranindependent battery, to signal ata station the location of the train onthe track, or otherwise give an alarm, independen' tly A .anni @fineBROOKLYN, NEW YORK.

of its operating the visible'or other signal E, or gate, at thecrossing. Thus the-'circnit-closer shown in figs. 3 and 4 may be usedfor such purpose, and be connected with the battery D by wires a? a* nt'an independent circuit, as represented.

lhe circuit-ciosers O C might bepiaccd away from the track, andbeoperated by a magnet or magnets tin-ought any simpie circuit-closeracted upon by the train. In the circuit-closer C the circuit is keptclosed by means ofthe lever b, while in the circuit-closer C' the leverb serves to keep the circuit open,lthe spring r keeping it closed.-Weights may in every case take the placey of springs, andv must beregarded. as ille equivalents thereof.

iVhat is here claimed, and desired to be secured by Letters Patent, is

1. The combination, with the circuit-closer@ o r C', of the lever b orb', so arranged that said ievrr holds the circuit-closer in positionwhen opened or closed, substantially as specified.

2. The spring r or fr', in combination with the cir- Y cuit-closinglever g or g', substantially as and for the purpose indicated.

3. The combination of the lever b or b', the springs f r or f r', andthe circuit-closing lever g or g', substantially as and for thepui-'pose herein specified.

4. The magnet d or d', so arranged with reference to the circuit-closinglever g -org that the charging of said magnet shall openthe main oraddrtional circuit, substantially as described.

5. The magnet d or d', in combination with a circuit-closing lever, g org', of a main or additional cir cuit, and a circuit-closer, or F', of anindependent circuit, essentially as and for the purpose or purposesdescribed.

6. The combination of the lever b or i1", the signals E and H, oreither, with abatterygD, and the'circuitclosing` lever g or g',operating essentially as specified.

7. The wirese, cf, and w, so combined orarranged with a single battery,D, a signal or signals, and two or more circuit-closers, C C', that acircuit may be closed and signal operated independently by either ofsaid circuit-closers, essentially as herein set forth.

8. The arrangement of the wires p q s o' o if s with the magnets d d',circnit-clcsers F 13",. and battery G, so that said battery will chargeone of the several magnets d d independently, through' or by differentcircuit-closers F F', essentially as 'and for the purposes described. j

9. Thecircuits w i iw, and a2 ai, so arranged with reference to abattery and eircuit-closers that two or more circuits may be closed, andtwo or more signals be operated independently of each other, by one 'andthe saine battery D, substantially as specified.

- WILLlAM ROBINSON.

Witnesses:

' FRED. HAYNns,

R. E. RABEAU,

